pvpython on cluster

ParaView Support
1

Dear all,

I’m trying to make a python script that is automatically generated with the Paraview trace tool to work from the command line.

I log in onto our cluster with putty and X11 forwarding enabled. Paraview works normally and I made the super simple test script shown below with it:

# trace generated using paraview version 5.6.0
#
# To ensure correct image size when batch processing, please search 
# for and uncomment the line `# renderView*.ViewSize = [*,*]`

#### import the simple module from the paraview
from paraview.simple import *
#### disable automatic camera reset on 'Show'
paraview.simple._DisableFirstRenderCameraReset()

# create a new 'OpenFOAMReader'
w0foam = OpenFOAMReader(FileName='/data/cl01-data/flow/JA/test_plaatjes/w0/w0.foam')
w0foam.MeshRegions = ['internalMesh']

# Properties modified on w0foam
w0foam.CaseType = 'Decomposed Case'

# get active view
renderView1 = GetActiveViewOrCreate('RenderView')
# uncomment following to set a specific view size
# renderView1.ViewSize = [1332, 741]

# show data in view
w0foamDisplay = Show(w0foam, renderView1)

etcetera. Now, when I type pvpython from /usr/bin/ to run this script, I get:

"Aborted (core dumped)"

I’ve narrowed down that the point at which it goes wrong is:

renderView1 = GetActiveViewOrCreate('RenderView')

Any ideas why this happens?

I’m using:

  • paraview version 5.6.0

  • Ubuntu 18.04.4 LTS

  • ASUS Turbo RTX 2060

Paraview came precompiled with openfoam 7 which I installed using the apt package management tool.

1 Like
2

X11 forwarding

You may want to avoid doing that. Use mesa if you do.

Which driver are you using for your RTX ?

3

Dear Mathieu,

Thank you for your reply.

As a test I have connected a monitor and keyboard to one of the cluster machines and tested the script there. It then works, so it is indeed a problem with X forwarding.

We have the commercial drivers of Nvidea (430.50). We tried the opensource drivers at first, but couldnt get it to work…

I’ll have our system admin look into mesa and the X forwarding problem, since I’m no expert in this field. If you have any other advice then I’m happy to hear it.

Kind regards,
Jurriaan

4

We have the commercial drivers of Nvidea (430.50). We tried the opensource drivers at first, but couldnt get it to work…

Nouveau is not tested here. Using nvidia driver is correct.

I’ll have our system admin look into mesa and the X forwarding problem, since I’m no expert in this field. If you have any other advice then I’m happy to hear it.

Actually quite easy, if mesa option have been enable during the compilation.
If not, you can download our release here : https://www.paraview.org/download/

For paraview 5.6, it is : ./bin/pvpython --mesa

5

Fantastic Mathieu! --mesa did the trick for me.

Thanks & best,
Jurriaan